Quiet the logging of the docs tests

Significantly quiets the logging of the docs tests by:
1. Switching two log statements to debug level.
2. Only calling ESTestCase#afterIfFailed if the test failure wasn't
just assumptions being violated.

test/framework/src/main/java/org/elasticsearch/test/ESTestCase.java

@@ -73,6 +73,7 @@ import org.junit.AfterClass;
 import org.junit.Before;
 import org.junit.BeforeClass;
 import org.junit.Rule;
+import org.junit.internal.AssumptionViolatedException;
 import org.junit.rules.RuleChain;
 
 import java.io.IOException;
@@ -140,13 +141,24 @@ public abstract class ESTestCase extends LuceneTestCase {
         @Override
         protected void afterAlways(List<Throwable> errors) throws Throwable {
             if (errors != null && errors.isEmpty() == false) {
-                ESTestCase.this.afterIfFailed(errors);
+                boolean allAssumption = true;
+                for (Throwable error : errors) {
+                    if (false == error instanceof AssumptionViolatedException) {
+                        allAssumption = false;
+                        break;
+                    }
+                }
+                if (false == allAssumption) {
+                    ESTestCase.this.afterIfFailed(errors);
+                }
             }
             super.afterAlways(errors);
         }
     });
 
-    /** called when a test fails, supplying the errors it generated */
+    /**
+     * Called when a test fails, supplying the errors it generated. Not called when the test fails because assumptions are violated.
+     */
     protected void afterIfFailed(List<Throwable> errors) {
     }
 

test/framework/src/main/java/org/elasticsearch/test/rest/ESRestTestCase.java

@@ -386,11 +386,11 @@ public abstract class ESRestTestCase extends ESTestCase {
         }
 
         if (!testCandidate.getSetupSection().isEmpty()) {
-            logger.info("start setup test [{}]", testCandidate.getTestPath());
+            logger.debug("start setup test [{}]", testCandidate.getTestPath());
             for (DoSection doSection : testCandidate.getSetupSection().getDoSections()) {
                 doSection.execute(restTestExecutionContext);
             }
-            logger.info("end setup test [{}]", testCandidate.getTestPath());
+            logger.debug("end setup test [{}]", testCandidate.getTestPath());
         }
 
         restTestExecutionContext.clear();